baber/WOPTO huggingface dataset:
Patent GB-297298-A (GB)
Title: Control mechanism for change-speed gearing and other services
IPC: F16H59/04
Filed: 1928-04-24
Abstract: 297,298. Halley Motors, Ltd., and Owen, W. April 24, 1928. Controlling variable - speed gearing.-Selector control mechanism suitable for operating variable-speed gearing 1, Fig. 1, at a distance from hand lever 3, Fig. 2, comprises an intermediate shaft 6 which slides and rocks to make the selector shaft 7 rock and slide respectively. The lever 3 is pivoted transversely at 15 in a bracket 16 which pivots again upon hollow trunnions 17 located axially in a stationary casing 23. The heel 3<1> of lever 3 engages constantly a notch 26 in a polygonal shaft 4, which passes through and rocks with the trunnions 17 and is universally jointed at 5 to the shaft 6. Two movements of the lever 3 at right angles in a gate 24 thus effect sliding and rocking of the shaft 6. A second universal joint 51 within a casing 9 connects the shaft 6 to a pin 20 which is journaled in a slipper member 30 movable in fixed arcuate guides 31. Secured to pin 29 is an arm 33 the forked upper end of which engages a pin 37 in the end of selector shaft 7. Sliding of shaft 6 rocks shaft 7 to operate say a striker 14. Rocking of shaft 6 slides shaft 7 to select a new speed by finger 13. An alternative connection between shafts 6 and 7 is shown in Fig. 5. In this form, a casing 40 rocks with arm 33 and shaft 7.
Patent GB-377703-A (GB)
Title: Improvements in coils used in dual range band pass filters for radio receivers
IPC: H03H7/01
Filed: 1931-04-22
Abstract: 377,703. Impedance networks. MOODY, G. H., 18, Grangemill Road, Catford, and ABRAHAMS H. H., 1, Wrottesley Road, Plumstead, both in London. April 22, 1931, No. 11982. [Classes 40 (iii) and 40 (v).] Relates to band-pass networks in which two tuned circuits C1, L1, L2, L3, L8, L7, C3 and C2, L5, L6, C3 selectable by switches and having different frequency-ranges are coupled through capacity and negative mutual inductance in order to yield a rectangular characteristic with a transmission band of constant width. According to the invention the negative-coupling-coil L7, in series but not coupled with coil L1 of one component circuit, is wound on or adjacent to the same former as coil L6 of the other component circuit. A single negative-coupling coil L7, suitably positioned, may be used, or the negative-coupling coil may be in two parts L7, L8, wound on the same former as the coils L5, L6, one of these parts, L7, being short-circuited for the medium wave-range. Change from long to medium wave-ranges is effected in this case by means of switch S2, which short-circuits coupling- coil L7 and tuning coil L6 and adds capacity C4 to the coupling capacity C3. The condenser C4 may, however, be omitted. Suitable dimensions of the parts are given in the Specification and in Figs. 2 and 3 (not shown).
Patent GB-314626-A (GB)
Title: Improvements in or relating to electrical switch or key lamp-holders
IPC: H01R33/955
Filed: 1928-04-24
Abstract: 314,626. Goldstone, M. H., and Ward & Goldstone, Ltd. April 24, 1928. Holders.-A switch lampholder comprises a hollow one-piece member a of insulating material having lamp contacts d, c secured in the closed end e, an insulating terminal disc h adapted to close the open end, switch contacts f, m carried by the closed end and open end respectively, and a sliding switch bar p adapted to engage the contacts. The terminal disc h carrying terminals j, k may be secured to the casing by means of the conductor g and may be formed with cordgrip wings. A bridge n mounted on a threaded spindle o may form the switch closing-member.
Patent GB-391605-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L5/30
Filed: 1932-04-27
Abstract: 391,605. Vacuum cleaners. HOOVER, Ltd., Perivale, Greenford, Middlesex.- (Hoover Co. ; North Canton, Ohio, U.S.A.) April 27, 1932, No. 12061. [Class 8 (i).] A suction nozzle 7 is mounted in the suction hood 6 of a vacuum cleaner with its mouth in line with that of the hood and is vibrated during working to agitate the pile of the material being cleaned. The nozzle forms the only outlet for air from the hood and its mouth 9 directs the air stream deeply into the pile. The nozzle 7 supported on pins 14 between springs 15 and connected to the fan casing by a flexible sleeve 12, is vibrated by a yoke 20 reciprocated from a crank pin 27 on a shaft 28 driven from the motor shaft.
Patent GB-1396303-A (GB)
Title: Metal articles with glass inserts sealed thereto
IPC: C03C27/04
Filed: 1971-04-29
Abstract: 1396303 Metal seals BUNKER RAMO CORP 1 May 1972 [29 April 1971] 12272/71 Heading B3V [Also in Division C1]  A metal article is provided with a glass insert by placing a jig adjacent an aperture in the article, standing on the jig one or more lengths of transparent glass tube, rod or filament, heating the assembly to melt the glass and form a pool in the aperture, cooling the assembly and removing the jig. The method may be used to provide a window in a pressure vessel or, as shown, in a spark plug; one or more metal tubes or rods may be sealed through the window. As shown, a nickel-iron electrode 15 is sealed in a mild steel body 10 by melting the glass tube 16. The coefficients of expansion of the glass and electrode are substantially the same and lower than that of the steel thus placing the seal under compression. A two-part jig 13, 14, of carbon is used of which the top may be concave to make the bottom of the seal convex.
Patent GB-613807-A (GB)
Title: Processes for the production of amino compounds
IPC: C07C209/48
Filed: 1944-06-28
Abstract: Bis-beta-amino propionitriles containing the skeleton <FORM:0613807/IV(b)/1> where R is a divalent organic radical, are prepared by reacting an a b -unsaturated nitrile with a diamine in which both amino groups are primary, the reactants being used in the proportion of substantially two moles. of the unsaturated nitrile to one mole. of diamine.  The unsaturated nitriles should be free from substituents which react with amino groups.  The reactants may be simply mixed, at room temperature, with or without a diluent, for example water, and the mixture allowed to stand for one or two hours; if desired, the mixture may be warmed.  The bis-beta-aminopropionitrile may be reduced by treatment with hydrogen, preferably by catalytic hydrogenation using a nickel catalyst in the presence of ammonia, so yielding the corresponding tetramines containing two primary and two secondary amino groups. The amino propionitriles may also be hydrolysed to the corresponding dicarboxylic acids; in alkaline media, salts of these acids result, from which the free acids may be obtained by acidification; by hydrolysing with an acid reagent in an alcoholic medium the corresponding dicarboxylic esters are obtained, mention being made in this connection of alkyl and aralkyl esters.  In examples: (1) acrylonitrile is reacted with a mixture of ethylene diamine and water and the resulting ethylene-bis-beta-aminopropionitrile recovered by distillation; (2) the crude product of (1) before the distillation step is mixed with ethanol saturated with ammonia and hydrogenated in the presence of a Raney nickel catalyst to yield N : N1 - bis - gamma - aminopropyl - ethylene diamine, and reference is made to its hydrate and tetrabenzoyl derivative; (3) acrylonitrile is reacted with hexamethylene diamine to yield hexamethylene - bis - beta - amino propionitrile which on reduction as in (2) above yields N : N1-bis - gamma - aminopropyl hexamethylene diamine; (4) acrylonitrile is reacted with hexamethylene diamine and the product hydrolysed to give hexamethylene bis-beta-amino propionic acid.  Other starting materials specified are methacrylonitrile and crotonitrile, and trimethylene diamine, tetramethylene diamine, pentamethylene diamine, para-phenylene diamine, 1 : 4 - diamino - hexane and gamma - gamma1-diamino propyl ether which is prepared by reacting ethylene cyanohydrin with acrylonitrile and reducing the resulting dinitrile. The nitriles and the corresponding tetramine, free acids or the esters thereof may be employed in the production of polymers, for example, as described in Specification 610,311.  According to the Provisional Specification, the esters of the above-described diamino-dicarboxylic acids may be reduced to yield amino alcohols.  A sample has been furnished under Sect. 2 (5) of para-phenylene bis-beta-amino propionitrile prepared by reacting para-phenylene diamine with acrylonitrile in glacial acetic acid.
Patent GB-1342094-A (GB)
Title: Alloys of the rare-earth metals
IPC: F42B23/04
Filed: 1970-12-03
Abstract: 1342094 Rare-earth alloys METHONICS Inc 3 Dec 1970 [4 Dec 1969 27 April 1970 23 Nov 1970] 12316/73 Headings C7A and C7D A ductile alloy for use in incendiary ammunition comprises from 0À3 to 0À09 wt per cent of carbon and from 0 to 2À5 wt per cent of magnesium, the balance consisting of mischmetal and incidental elements and impurities, if any. A carbon content of from 0À06 to 0À8% is preferred. A method of making the alloy comprises the steps of forming under substantially oxygen-free conditions a melt of mischmetal; adding to the melt carbon in a discrete buoyant solid i.e. in the form of blocks or pellets; maintaining the carbon in contact with the melt for a time, sufficient to result in 0À03% to 0À09% of carbon being digested in solid solution in the alloy; and thereafter removing excess of carbon, and allowing the melt to solidify. Up to 2À5% of magnesium may be added to the melt which is maintained at a temperature of 1600‹ to 2200‹F. The oxygen-free conditions are established by forming the melt beneath a salt flux. The solidified alloy is annealed at 800‹ to 1300‹F for 6 to 48 hours. If, however, magnesium is not included in the alloy it is baked in oil for 4 to 6 hours at a temperature not exceeding 600‹F after any annealing step.
Patent GB-753627-A (GB)
Title: Penicillin salts
IPC: C07D499/22
Filed: 1954-04-28
Abstract: A complex salt of aluminium, penicillin and a p-aminobenzene sulphonamide is prepared by reacting a water-soluble salt of penicillin with a water-soluble salt of the p-aminobenzenesulphonamide and a water-soluble salt of aluminium in a solvent which is preferably water.  It is preferred to add a solution of the aluminium salt to mixed solutions of the penicillin salt and p-aminobenzenesulphonamide salt.  The temperature may be 0 DEG  to 100 DEG  C. but it is preferred to keep the temperature below 25 DEG C. and advantageously below 15 DEG  C. Preferred are compounds of formula Al(Pen)n(Sulph)3-n where Al represents a trivalent aluminium atom, Pen represents a monovalent radical of penicillin, sulph represents a monovalent p-aminobenzenesulphonamide radical and n represents a positive integer of less than three such as monopenicillin aluminium di - p - aminobenzenesulphonamide and di-penicillin aluminium mono-p-aminobenzenesulphonamide.  The proportions of penicillin and p - aminobenzenesulphonamide may be varied within the series disclosed by the above general formula while the aluminium remains constant.  A mixed-penicillin mixed-sulphonamide complex is possible, e.g. mono-penicillin G mono-penicillin - o - aluminium mono-sulphatiazole.  Specified penicillins are penicillins G, O, F, dihydro F, K and X.  Specified p-aminobenzene-sulphonamides are sulphamethazine, sulphacetamide, sulphamerazine, sulphadiazine, sulphapyridine, sulphathiazole, phthalylsulphathiazole and succinylsulphathiazole.  The penicillin water-soluble salts specified are those of sodium, potassium, calcium, barium, diethanolamine, 2-methyl-2-aminopropanol, methylamine, isopropylamine and ethanolamine.  The sulphonamide salts specified are those of sodium, potassium, calcium, diethanolamine, methylamine, 2-methyl-2-aminopropanol, isopropylamine and ethanolamine.  Many examples of specific compounds are given.
Patent GB-130459-A (GB)
Title: Improvements in or relating to Molds for Pneumatic Tires.
Inventor: HOPKINSON ERNEST
IPC: B29D30/06
Filed: 1918-07-30
Abstract: 130,459. Hopkinson, E. July 30, 1918. Vulcanizing tyres.-The two parts 5, 5 of a circular tyre mould are secured on the external circumference or, as shown, in the internal circumference by clamps of which the flanges 9 engage with corresponding recesses in the mould parts. The clamps are locked by a ring 11 which spans the clamps and is supported on lugs provided on several of the clamps. The ring has its outside surface tapered to engage with the tapering surfaces 14 of the clamps.
Patent GB-562241-A (GB)
Title: Optical sighting or viewing devices
IPC: G03B13/02
Filed: 1941-12-15
Abstract: 562,241. Sighting devices. CURTIES, C. L., and OFFER, T. J. (trading as BAKER, C., and CURTIES, M. G. L.). Dec. 15, 1941, No. 12427/42. Divided out of 562,233. Drawings to Specification. [Class 97 (i)] In sighting apparatus comprising a concaveconvex transmissive reflector in the sighting tube to produce an image at infinity of an illuminated graticule by reflection in the concave surface, the glass forming the reflector is of neutral tint or coloured, so as to reduce the intensity of the image internally reflected by the convex surface. The apparatus may be otherwise constructed as described in Specifications 562,233 and 562,240.
Patent GB-399745-A (GB)
Title: Improvements in nut locking arrangements
IPC: F16B39/22
Filed: 1933-04-28
Abstract: 399,745. Locking nuts. AEROGEN CO., Ltd. and DEAN, P. W., Bridge Wharf Works, Chalk Farm Road, Camden Town, London. April 28, 1933, No. 12431. [Class 89 (i).] Nuts are locked by a washer d of semicircular section which seats in a rectangular or conical recess c<1> in the base of the nut a. When screwed against the work, the washer is twisted to engage with the threads of the bolt. A portion e of the washer which lies in a slot in the base of the nut prevents slacking off.
Patent GB-1194131-A (GB)
Title: Improvements in or relating to a Rotary Seal Construction.
IPC: F16J15/34
Filed: 1968-03-14
Abstract: 1,194,131. Mechanical seals. SYBRON CORP. 14 March, 1968 [14 April, 1967], No. 12534/68. Heading F2B. A shaft 30 (e.g. agitator or turbine) is sealed where it passes into the vessel by a rotatable ring 22 urged into contact with a sealing face 14 by rubber or metal spring means 43 which is housed in an annular space between the ring and shaft and is protected from the contents of the vessel by a resilient seal 21. A second mechanical seal 25, 26 may also be employed to define a chamber 32 for lubricant. The ring 22 may be made of ceramic material and the wall of the vessel lined with glass. The ring 21 may be made of P.T.F.E. or neoprene and, if desired, reinforced with a rubber or metal ring. Pin 42 limits the travel of the ring 21 under pressure from within the vessel. In Fig. 3 (not shown), a carbon ring (349) is recessed into the vessel wall for co-operating with the shaft ring (322) which is urged by a spring (343) housed in a retainer (341B), a glass lining being provided on the ring, shaft and a shoulder ring (323F). In Fig. 4 (not shown), the seal is protected by an enclosure which is fed with fluid under pressure through a duct (452), the fluid being arranged to leak into the vessel past a lip seal (451) to prevent entry of solids.
Patent GB-403674-A (GB)
Title: Improvements in or relating to two-way telephone systems
IPC: H01J25/68
Filed: 1932-06-27
Abstract: 403,674. Two -- way transmission. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, and MATHIEU, G. A., 3, Mayfield Gardens, Shirehall Park, both in London. June 27, 1932, No. 12535/33. Divided on 392,210. [Class 40 (iv).] The radio-transmitter and the receiving path of a repeater for coupling a telephone line LS with ultra short wave radio apparatus are rendered operative in accordance with the direction of signals by a pair of triodes V14, V<1>14 each having its grid connected to the anode circuit of the other. Alternatively the low-frequency transmitting path may be controlled instead of the transmitter itself. Signal currents arriving from the line LS produce by the rectifying action of V<1>14 a voltage across condenser C2 which (a) paralyses V14, (b) starts the transmitter oscillator VT1, VT2 in the manner described in Specification 392,210, [Group XL], by removing the short-circuit normally provided across the resistance R by the valve KV, (c) paralyses the receiving amplifier G, (d) stops the current through a valve V15 to cause a differential relay C1 in its plate circuit to light the lamp L1. The characteristics of the amplifier G and the valve KV are so chosen that the receiving path is blocked before the transmitter oomes into operation. On the cessation of speech from LS, C2 discharges through a high resistance R2, but the current through V15 quickly rises sufficiently to operate C1 in the opposite direction. Condenser C11 is then charged through a further relay AL which short-circuits C2 to bring the circuit into a condition in which reception is possible. Signals from the radio receiver, provided V11 is not paralysed, are rectified by V14 and produce a voltage across condenser C3 which (a) paralyses V<1>14 and (b) stops current through V13 so as to raise the plate voltage of V12 (which is fed through a common resistance from the same source as V13 to its optimum value. In the absence of speech V12 is made inefficient by the reduction of plate voltage to limit the amount of noise passed to the hybrid coil. In a modification V<1>14 instead of controlling the transmitter controls apparatus in the transmitting path from C similar to that shown at J. The amplifiers at B and I through which the controlling portions of the signals pass may be tuned so as to be particularly responsive to syllabic energy.
Patent GB-125608-A (GB)
Title: An Improved Electrolytic Oxidation Process and Apparatus therefor.
IPC: C25B1/28
Filed: 1916-09-05
Abstract: 125,608. C. I. (1914) Syndicate, Jenkins, H. C., Blackmore, W., and Howard, A. Sept. 5, 1916. Pcrchlorates, obtaining; cells; electrodes; electrolytes, treating non-chemically.-In oxidation processes, for instance the conversion of sodium chlorate into perchlorate, the electrolyte is caused to flow alternately upwards and downwards through a series of water-jacketed cathode chambers and over cool surfaces between them. In the apparatus shown in Fig. 1, the chambers and intermediate surfaces are formed by a casting 1 acting as cathode, and cooled by a single stream of water flowing around baffles 3 between the chambers. The chambers are nearly filled by anodes 7 which leave narrow passages for the liquid. Each anode may consist of a leaden base faced with platinum, preferably in the form of a single sheet bent over the curved bottom of the anode. The platinum sheet may be held partly by the pressure of the electrolyte, for which purpose the base is provided with grooves or ventholes, and partly by glass, porcelain, or like spacers 10, Figs. 1 and 4, fitting over the vertical edges of the base and facing. The edges of the facing may be separated from the base by insulating-paint and from the spaces by tarred asbestos &c. 12. Lugs extend horizontally from the anodes to a bus-bar. Between the anodes mav be placed earthenware or like covers 13 with gas outlets. A hood 14 with an electrolyte inlet 15 closes the whole series of chambers. After further cooling, the issuing liquid may enter another electrolyzer, which, if the continuity of the stream is interrupted, may be electrically in series with the first. The temperature of the electrolyte must not exceed 40‹ C. A current density of 3 amperes per sq. in. and a pressure of 6.8 volts are suitable. The original chlorate solution may be obtained as described in Specification 125,609 and may have a sp. gr. of 1.45.
Patent GB-215194-A (GB)
Title: Improvements in bodies for motor vehicles
IPC: B60J7/12
Filed: 1923-05-10
Abstract: 215,194. Daimler Co., Ltd., and Bush, A. E. May 10, 1923. Vehicle windows. - Movable pillars for vehicle windows are arranged to be moved bodily inwards of the vehicle and then turned down about a pivot having its axis substantially at rightangles to the vehicle body, so that the movement of the pillar does not interfere with the passengers or seats. The pillar E is adapted to be swung about a pivot D which is carried by an arm C pivoted about a pivot C<2> in a recess in the door or vehicle body. The pillar is, adapted to be swung inwardly to the position shown in dotted lines, and then turned down about the pivot D. A suitable spring latch, such as G, is provided to keep the pillar in vertical position.
Patent GB-129966-A (GB)
Title: Improvements in Dash Assembly and Controlling Devices for Motor Vehicles.
IPC: B60K37/02
Filed: 1919-05-19
Abstract: 129,966. Ford & Son, H., (Assignees of Ford, H.). July 17, 1918, [Convention date]. Dash-boards.-Relates to the dash-board, hand steering-wheel, and associated control devices for tractors and other motor-vehicles. A housing 6 mounted on the transmission casing 1 has an extension forming a dash-board 7, which supports one end of the fuel tank 9 and has a part formed as a steering-column support 38, and also supports a control lever and has provision for other controls.
Patent GB-1270845-A (GB)
Title: A method of electrolytically reducing tin oxide to tin
IPC: H04N3/14
Filed: 1969-07-17
Abstract: 1,270,845. Electrolytically reducing tin oxide to metallic tin. XEROX CORP. July 17, 1969 [July 19, 1968], No. 12683/71. Divided out of 1, 270, 844. Heading C7B. A method of electrolytically reducing segments of a coating of tin oxide on a supporting substrate to metallic tin comprises forming an electrolytic cell having an anode, the tin oxide coating as the cathode and an electrolyte therebetween, portions of the tin oxide being protected by overlying portions of photo-resist material, the protection being such that the edges between juxtaposed segments of metallic tin produced by the method and remaining transparent tin oxide are sharp, and the electrolytic reduction being achieved in the absence of heat formation sufficient to cause lifting of the photo-resist pattern or of the tin from the supporting substrate. For example, the substrate is of glass or (Registered Trade Mark) "Pyrex"; the tin oxide is connected along two opposite edges as cathode; an Al anode is used and the electrolyte comprises either (a) CH 3 COOH buffered at a pH of 5À3 by CH 3 COONa or (b) an aqueous stannic chloride solution. 3 volts are applied across the cell and the electrolyte is stirred continually during the reduction. After applying the resist and before the electrolysis, there may be a cleaning step in hot chromic acid.
Patent GB-462579-A (GB)
Title: Improvements in electrode systems for rectifying and controlling high and medium frequency electrical oscillations
IPC: H01L21/00
Filed: 1936-05-05
Abstract: 462,579. Wireless receiving circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. May 5, 1936, No. 12707. Convention date, July 29, 1935. [Class 40 (v)] [Also in Group XXXVI] In a detector comprising two electrodes with an intermediate thin layer of insulating material, the insulating layer is separately formed on one electrode and its effective area in contact with the other electrode is small, the arrangement being such that the detector has a definite and reproducible self-capacity. In Fig. 1, a copper base 1 bears an electrode 2 of cuprous sulphide on which an insulating coating 3 is formed by evaporating a measured quantity of silicon dioxide. The second electrode 4 consists of a pointed iron rod. In Fig. 2, the aluminium electrode 5 is formed electrophoretically with a coating 6 of aluminium oxide. On this is pressed the semi-conductive electrode 7 of molybdenum sulphide, of which only the column below the supply conductor 8 is effective. In Fig. 3, the electrode 10 is formed by applying selenium in a liquid state to the brass base 9. The iron wire electrode 11 is provided with an insulating coating 12 of polystyrene or other resin.